Posted by Terrence Davidson on 29th Aug 2013
After months of reviewing multible web forums site. Researching into using new led technology. To replace standered headlight for normal every day cars that uses bulb socket types that do not exist. With a bit of modding to the headlight housing which was a bit easy to do with simple hardware tools and right small hardware parts. I have succesfuly implemented the h4 bulb into the hb5 housing.
I await the day when there are hb5 led bulbs that are the 1800 lumen. Also I now seem to have a spare identical kit. From a diffrent vendor. This is going to make for interesting testing on reducing the temps the bulbs run to lumen output. Goal reducing the temps to the bulb to luke warm just right to just warm the headlamps to above freezing but when handled by hand not a burn hazzard (and thats with the included fan running, note I consider the fan to be a weak link prone to premature failer so a close loop water cooling system may have to be employed that should be not to hard for me to figure out how to do) while maintaining the lumen needed for everyday road usage. This is phase 2. Phase one applied to the fog lights after converting ac 18 watt led worklight to direct dc operation. that turned out a bit better than planned. I lowered the voltage to a steady 9 volts to the light assembebly and it still better than the factory stock lights that were there and cold to the touch. Phase 3 will deal with the heating up of the cpu drivers. Currently modded 2 intel socket 478 heat sinks and mounted the drivers directly on them for improved passive cooling. My van has no real good placement for direct metal mount to chasis location. I do not want the cpu drivers to fail do to overheating. this have evolve to a water cooling type system.